Haynesite Mineral Data

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General Haynesite Information

Chemical Formula:

(UO2)3(SeO3)2(OH)2•5(H2O)

Composition:

Molecular Weight = 1,188.09 gm

Uranium 60.10 % U 68.18 % UO₂

Hydrogen 1.02 % H 9.10 % H₂O

Selenium 13.29 % Se 18.68 % SeO₂

Oxygen 25.59 % O

______ ______

100.00 % 95.96 % = TOTAL OXIDE

Empirical Formula:

(UO₂)₃(SeO₃)₂(OH)₂•5(H₂O)

Environment:

Found as crusts on mudstones and sandstones of the Morrison formation.

IMA Status:

Approved IMA 1991

Locality:

Repete mine near Blanding, San Juan County, Utah. USA. Link to MinDat.org Location Data.

Name Origin:

Named for Patrick Haynes, U.S. Geologist who first collected the mineral.

Name Pronunciation:

Haynesite + Pronunciation

Synonym:

IMA1990-024

Haynesite Image

Images:

Haynesite

Comments: Yellow tufts of haynesite.
Location: Repete mine, San Juan County, Utah, USA. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Images:

Haynesite

Comments: Bright yellow sunburst clusters of haynesite on a fracture surface..
Location: Repete Mine, San Juan Co., Utah, USA. Scale: Picture size 0.5 cm.
© Paul M. Schumacher

Haynesite Crystallography

Axial Ratios:

a:b:c =0.4604:1:0.3989

Cell Dimensions:

a = 8.025, b = 17.43, c = 6.953, Z = 2; V = 972.56 Den(Calc)= 4.06

Crystal System:

OrthorhombicSpace Group: Pnc2,Pncm

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 8.01(1), 2.912(0.8), 4.01(0.7),

Physical Properties of Haynesite

Cleavage:

{010} Good

Color:

Brownish yellow, Amber.

Density:

4.1

Diaphaneity:

Transparent to Translucent

Habit:

Acicular - Occurs as needle-like crystals.

Habit:

Rosette - Bundled tabular aggregates resembling rose flower petals.

Habit:

Tabular - Form dimensions are thin in one direction.

Hardness:

1.5-2 - Talc-Gypsum

Luminescence:

Fluorescent, Short UV=yellowish green.

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Haynesite

Gladstone-Dale:

CI meas= -0.311 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.324 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1795,KPDmeas= 0.1777,KC= 0.1355
Ncalc = 1.55 - 1.56

Optical Data:

Biaxial (-), a=1.618, b=1.783, g=1.785, bire=0.1670, 2V(Calc)=10, 2V(Meas)=45.

Pleochroism (x):

pale yellow.

Pleochroism (y):

bright yellow.

Pleochroism (z):

bright yellow.

Calculated Properties of Haynesite

Electron Density:

Bulk Density (Electron Density)=3.51 gm/cc
note: Specific Gravity of Haynesite =4.10 gm/cc.

Fermion Index:

Fermion Index = 0.01
Boson Index = 0.99

Photoelectric:

PE_Haynesite=1,605.53 barns/electron
U=PE_Haynesite x r_electron=5,629.21 barns/cc.

Radioactivity:

GRapi = 4,381,060.85 (Gamma Ray American Petroleum Institute Units)
Concentration of Haynesite per GRapi unit = 228.26 (PPB)

Haynesite is Radioactive as defined in 49 CFR 173.403. Greater than 70 Bq / gram.

Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 10 cm box) 6.94 ± 1.74 grams of pure Haynesite .
Estimated Maximum U.S. Postal Shipping Size (10 mRem/hr limit, Unshielded 100 cm box) 694.28 ±173.57 grams of pure Haynesite .

**Estimated Radioactivity from Haynesite** - very strong
Specimen Size Weight/Volume (Sphere) *	Calculated Activity Bequerols (Bq)	Calculated Activity Curies (Ci)	Estimated Activity GR(api)	Estimated Exposure (mRem**)/hr If Held in Hand For One Hour
1000 gm / 7.75 cm	107,585,669	2.91E-03	4,381,060.85	1,440.35
100 gm / 3.60 cm	10,758,567	2.91E-04	438,106.09	144.03
10 gm / 1.67 cm	1,075,857	2.91E-05	43,810.61	14.40
1 gm / 7.75 mm	107,586	2.91E-06	4,381.06	1.44
0.1 gm / 3.60 mm	10,759	2.91E-07	438.11	0.14
0.01 gm / 1.67 mm	1,076	2.91E-08	43.81	0.01
0.001 gm / 0.78 mm	108	2.91E-09	4.38	0.00

Weight of pure Haynesite in grams (gm) and Calculated Diameter of a Sphere with a Density of 4.10 gm/cc.*
Goverment Estimate of Average Annual Exposure ( 360 mRem) **
Note: 10 microsieverts/hr = 1 mRem/hr **
Max Permissable Adult Dose 50,000 mRem/yr (hands), 15,000 mRem/yr (eyes)
Lethal Dose LD(50) Exposure 400,000 to 500,000 mRem

Haynesite Classification

Dana Class:

34.07.07.01 (34)Selenites - Tellurites - Sulfites

(34.07)Dana Type

(34.07.07)Dana Group

34.07.07.01 Haynesite (UO2)3(SeO3)2(OH)2•5(H2O) Pnc2,Pncm Ortho

34.07.07.02 Larisaite! Na(H3O)(UO2)3(SeO3)2O2•4(H2O) Pm 2

Strunz Class:

04.JJ.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.J - Arsenites, Antimonites, Bismuthites, Sulfites,

04.JJ -Selenites with additional anions, with H2O

04.JJ.25 Haynesite (UO2)3(SeO3)2(OH)2•5(H2O) Pnc2,Pncm Ortho

Other Haynesite Information

References:

NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)

See Also:

Links to other databases for Haynesite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Uranium Minerals

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Print or Cut-and-Paste your Haynesite Specimen Label here :

Haynesite

(UO2)3(SeO3)2(OH)2•5(H2O)
Dana No: 34.07.07.01 Strunz No: 04.JJ.25
Locality:

Notes: